Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

The UDOO has the same pins as the Arduino DUE, as well as the DUE's ARM SAM3X processor, which is dedicated to the GPIO pins. Android 4.0.4 or Linux (Ubuntu 11.10) runs on a second processor, a ...

If you’re using a LM2596 DC-DC converter module to power your gadget, you can add a touch sensitive soft switch for literally pennies. The trick is utilizing the enable pin on the LM2596.